[MC-115466] 17w14a doLimitedCrafting(true) Crafting Based duplication

When doLimitedCrafting is set to true it is possible to duplicate items in both the personal crafting and crafting table boxes.

This works with both stackable and non-stackable items.

To reproduce. set doLimitedCrafting to True. For non stackable items, 2 will work. For stackable items, fill all slots with the item.

Click and drag like you would be splitting a stack. upon dropping the item in its original slot. double click. That item is now duplicated.

Linked issues

Also this works in both singleplayer (where i discovered it) and online on servers. Demo is on a server.

Confirmed. The items aren't real though.

@@unknown, the items are real. You can drop them and after reopening the world they are still there.

Not sure what defines a 'real' item. But they seem real enough.

They have durability that decreases independently and they can break blocks, i can use them to craft other items.